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// SPDX-License-Identifier: MIT
// Copyright © 2018 WireGuard LLC. All Rights Reserved.
import Foundation
import Network
struct LegacyDNSServer: Codable {
let address: IPAddress
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
var data = try container.decode(Data.self)
let ipAddressFromData: IPAddress? = {
switch data.count {
case 4: return IPv4Address(data)
case 16: return IPv6Address(data)
default: return nil
}
}()
guard let ipAddress = ipAddressFromData else {
throw DecodingError.invalidData
}
address = ipAddress
}
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(address.rawValue)
}
enum DecodingError: Error {
case invalidData
}
}
extension LegacyDNSServer {
var migrated: DNSServer {
return DNSServer(address: address)
}
}
extension Array where Element == LegacyDNSServer {
var migrated: [DNSServer] {
return map { $0.migrated }
}
}
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